Hello Karla, Well, quite a few things could be wrong. Since you posted in the Pest Management forum, I am guessing you suspect pests? Here is a thread that discussed pests on jade plants, you may want to look at: http://www.botanicalgarden.ubc.ca/forums/showthread.php?t=7352&highlight=jade If you follow the links you may identify some problem with the care of your plant. If you can tell us more about your plant, how/where it is planted, anything else happening besides the leaf drop it may be easier to figure out what is going on with your plants. There are quite a few threads that mention jade plants. You may want to read through them to learn more about jades. You can find them by using the search function on the green bar at the top of the page. Hope this helps,